Chemistry, asked by ttsharma0106, 6 months ago

What chemical is used to remove impurities such as Sulphur Dioxide,

carbon dioxide and the oxides of Nitrogen during the preparation of

hydrogen gas​

Answers

Answered by lata1213
2

Answer:

Caustic potash solution to remove sulphur dioxide, carbon dioxide and oxides of nitrogen.

SO2 + 2KOH → K2SO3 + H2O

CO2 + 2KOH→ K2CO3+ H2O

2NO2 + 2KOH →KNO2 + KNO3 + H2O

Answered by yashyadav185
0

Answer:

Cooling of the gas is necessary to remove impurities and to condense and remove part of the water vapour, which would dilute the acid product. The sulfur dioxide gas is then dried with concentrated sulfuric acid.

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